- Plesk Onyx 17.5 for Windows
Unable to edit
box in the tab
Home > Tools & Settings > Firewall > Firewall rules
for the following rules:
Web Server (HTTP)
Post-Office Protocol Version 3 (POP3)
Secure Web Server (HTTPS)
Port can be changed with no errors to the custom one via Windows Firewall directly.
Such behavior is by design. It is implemented in that way to decrease number of the errors with firewall configurations and to prevent breaking something on server.
Ability to manage all Firewall rules is a new functionality for Plesk and a point to improve firewall feature. Report this by referring to the following link: https://plesk.uservoice.com/forums/184549-feature-suggestions
The top-ranked suggestions are likely to be included in the next versions of Plesk.
As a workaround, customize ports directly in Windows Firewall.